来自MSC的外体通过抑制肺血管重塑来减轻肺高血压
Shanshan Zhang1, Junfu Wang2, Jiang Wen3
1Department of Emergency, The Second Hospital of Shandong University, PR China.
Experimental cell research
|September 19, 2024
概括
人类带介质干细胞衍生外体 (hUC-MSC-EXO) 显示了对肺高血压 (PH) 的治疗潜力. 这些外体可以通过抑制NF-κB通路和激活BMP信号通路来治疗PH.
科学领域:
- 心血管研究研究心血管研究
- 再生医学是一种再生医学.
- 细胞生物学 细胞生物学
背景情况:
- 肺高血压 (PH) 是一种严重的心肺疾病,其特点是血管重塑和右心室衰竭.
- 目前的PH治疗方法有限,需要新的治疗方法.
- 介酶干细胞衍生的外体对PH有前途,但它们的潜在机制需要阐明.
研究的目的:
- 为了研究人类带介质干细胞衍生的外体细胞 (hUC-MSC-EXO) 改善单质素 (MCT) 诱导的肺血管重塑的机制,在PH的老鼠模型中.
- 探索NF-κB/BMP信号通路在hUC-MSC-EXO介导的PH治疗中的作用.
主要方法:
- 通过注射单克罗他林 (MCT) 建立了一种大鼠PH模型.
- 在MCT诱导PH的老鼠中给出了hUC-MSC-EXO.
- 在体外和体内分析了肺血管改造,右心室缩以及关键信号分子 (NF-κB,BMPR2,BMP-4,BMP-9,ID1,Gremlin-1) 的蛋白质表达水平.
主要成果:
- hUC-MSC-EXO显著减弱了MCT诱导的PH和右心室缩.
- hUC-MSC-EXO治疗增加了BMPR2,BMP-4,BMP-9和ID1.1的表达.
- 在hUC-MSC-EXO治疗后,NF-κB p65,p-NF-κB-p65和格雷姆林-1表达减少.
结论:
- hUC-MSC-EXO通过抑制NF-κB信号通路对PH产生治疗作用.
- hUC-MSC-EXO促进了BMP信号通路的激活,抵消了肺血管重塑.
- 这项研究强调了hUC-MSC-EXO作为PH血管改造的潜在治疗策略.
更多相关视频
08:13Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice
Published on: April 10, 2019
6.0K
09:23Shunt Surgery, Right Heart Catheterization, and Vascular Morphometry in a Rat Model for Flow-induced Pulmonary Arterial Hypertension
Published on: February 11, 2017
16.7K
相关概念视频
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
139
Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
139
Mesenchymal Stem Cells
4.6K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
4.6K
